This is the worst possible time for Britain to consider leaving the EU – or for Scotland to break with Britain.

The EU is an unfinished project of European states that have sacrificed part of their sovereignty to form an ever-closer union based on shared values and ideals. Those shared values are under attack on multiple fronts. Russia’s undeclared war against Ukraine is perhaps the most immediate example but it is by no means the only one. Resurgent nationalism and illiberal democracy are on the rise within Europe, at its borders and around the globe.

Since world war two the European powers, along with the US, have been the main supporters of the prevailing international order. Yet, in recent years, overwhelmed by the euro crisis, Europe has turned inward, diminishing its ability to play a forceful role in international affairs.